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My 1975 SeaCraft 25' Seafari rebuild thread
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01-29-2015, 01:31 PM
flyingfrizzle
Senior Member
Join Date: Sep 2012
Location: Eastern NC
Posts: 1,653
Work has kept me from finishing the bracket but I have still have been making progress. I had gotten the clay filets in the corners and rounded them off with my filet tool. I started out with some clay my coworker gave me (she makes clay art) but that was not the right stuff for the job. It dried out way too fast and shrunk. The shrinkage caused it to crack up so I had to remove it and then start over with the right stuff the second time. I got some modeling clay that was listed as shrink free and the package said that it would not harden either. It was much more playable and went in much more smoothly. It was also shaped in little sticks so it fit in the corners perfect for making radiuses. Once I got this done I waxed it a few more times. Over all I waxed the mold a total of 7 or 8 times letting it dry 15 minutes and removing it each time with a special cloth made for buffing out molds with wax (forgot what the cloth is called). I got the gel coat sprayed in with my cup gun. I sprayed 4-5 mils then let it kick slightly then did a second coat of 3-4 more. I didn't thin the gel at all so I could of sprayed it in one thick coat but I was worried about it sagging on the sides. Cold as it was it came out slow and thick. The cup gun works well for mold like this due to it gets in the corners good with out hurting the filets. After this, while still slightly tacky, I laid 2" strips of csm in the corners then a 4" wider strip of csm in the corners. I had all the cloth pre-cut so it went well laying it in at one time before it kicked off. I laid all the sides with 2 layers of csm and overlapped the sections to prevent seams. Once it was all in I rolled all the air out as well as possible and got the csm laying so that it looked like one continuous layup. I used the csm as a skim coat to help prevent print threw of the 17oz biaxel. I have several layers of 1708 and 1700 to lay in also but haven't had a chance to get that far yet. All the csm has fully cured now so I will have to scuff it up with some 80 grit to get a good bite for the new resin to bond too when I lay it in. I wanted to keep it all green on green but work would not let that happen. I hope to get the rest in tonight as well as bed the rear motor mount core in place too.
Clay filets in:
The bad clay I used and had to remove:
The mold after White Gel coat was sprayed:
The cup gun I spray gel with:
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68 27' SeaCraft Race boat
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74 20' SeaCraft CC sf
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